Donut Lab says latest test proves its solid-state battery isn’t a supercapacitor

When Donut Lab archetypal announced its solid-state artillery earlier this year, there was immoderate speculation astir whether the Finnish startup had really produced a supercapacitor, which is simply a overmuch shorter-term signifier of electrical storage. Supercapacitors tin complaint and discharge quickly, akin to Donut Lab's claimed solid-state battery. But supercapacitors are wholly antithetic from batteries successful presumption of vigor retention capableness and semipermanent use. Was Donut Lab's artillery really conscionable a supercapacitor successful disguise?

The startup says no, and it has the autarkic test results to beryllium it. The test, which was yet again conducted by state-owned VTT …

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